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CTRI Number  CTRI/2025/09/094475 [Registered on: 09/09/2025] Trial Registered Prospectively
Last Modified On: 09/09/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Randomized, Parallel Group, Active Controlled Trial 
Public Title of Study   A study comparing two medicines letrozole and mifepristone used before misoprostol for the treatment of abortion  
Scientific Title of Study   Randomized controlled trial comparing letrozole versus mifepristone for pretreatment in medical management of first trimester missed abortion 
Trial Acronym  Nil  
Secondary IDs if Any  
Secondary ID  Identifier 
bandana1994  ClinicalTrials.gov 
Nil   NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  DR VANDANA DEVI 
Designation  secodary dnb pg resident 
Affiliation  Baba Saheb Ambedkar hospital Rohini new Delhi 
Address  Room no 279
Room no 279 hospital campus
North West
DELHI
110085
India 
Phone  07879533029  
Fax    
Email  bandanapcms2016@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Neeraj Sharma 
Designation  Senior Specialist and professor 
Affiliation  Baba Saheb Ambedkar Hospital Rohini new Delhi 
Address  Hospital campus
Room no 279 hospital campus
North West
DELHI
110085
India 
Phone  09560653463  
Fax    
Email  sneeraj90@yahoo.com  
 
Details of Contact Person
Public Query
 
Name  Dr Rashmi Khatri 
Designation  M.S. OBGY Specialist and professor 
Affiliation  Baba Saheb Ambedkar Hospital Rohini new Delhi 
Address  Room number 280 hospital campus
Room number 280 hospital campus
North West
DELHI
110085
India 
Phone  8130940185  
Fax    
Email  aassingh111@gmail.com  
 
Source of Monetary or Material Support  
Baba Saheb Ambedkar hospital Rohini new Delhi India pincode 110085 
 
Primary Sponsor  
Name  Dr Vandana Devi 
Address  Room no 279 type 1 Baba Saheb Ambedkar hospital Rohini new Delhi India pincode 110085 
Type of Sponsor  Other [self] 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Vandana Devi  Labor room first floor gynecology department north west DELHI  Baba Saheb Ambedkar hospital and medical college pincode 110085 india
North West
DELHI 
09399150645

bandanapcms2016@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics committee of Baba Saheb Ambedkar hospital and medical callege new delhi 110085  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: O034||Incomplete spontaneous abortion without complication,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Letrozol   group 1 patient will take an oral dose of letrozole 10 mg once daily for three consecutive days in ward. On the morning of third dose. they will receive 800 mcg of vaginal misoprostol in the labor room after clinical examination 
Comparator Agent  mifepristone   Patients will receive a single oral dose 200 mg of mifepristone in the ward after 48 hours, they will receive 800 mcg of vaginal misoprostol, administered by a doctor in the labor room Total duration of study 1 year 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  45.00 Year(s)
Gender  Female 
Details  1.Hemodynamically stable patient
2.Gestational age up to 12 complete weeks of gestation by LMP and missed - abortion confirmed by following USG criteria [USG findings CRL more than 7mm and no heartbeat or mean sac diameter (MSD) more than 25 mm no embryo visualized]
Hb 9 g/dl,
 
 
ExclusionCriteria 
Details  1.Known hypersensitivity to letrozole or misoprostol, mifepristone
2.Known case of heart, liver, kidney disease and adrenal insufficiency
3.History of bleeding disorder or intake of anticoagulant drug
4.History of previous 2 LSCS or more, history of myomectomy or other uterine surgery
5.Diagnosed case of uterine fibroid, uterine anomalies
 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
9.To determine the efficacy of letrozole versus mifepristone as a pretreatment in management of first trimester missed abortion in terms of
Induction to expulsion interval
need for surgical interventions
 

baseline follow by 2 week 
 
Secondary Outcome  
Outcome  TimePoints 
1. To evaluate and compare the following complications and side effects in both the groups
a Abnormal uterine bleeding
b Pain abdomen
Retained product of conception after day 14
 
14 days after expulsion 
 
Target Sample Size   Total Sample Size="82"
Sample Size from India="82" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   Phase 4 
Date of First Enrollment (India)   20/09/2025 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary   Recent studies suggest that letrozole may enhance effectiveness of misoprostol in medical abortion the exploration of letrozole as a pretreatment agent before misoprostol administration present a promising alternative in medical management of first trimester missed abortion especially setting where mifepristone is contraindicated moreover letrozole can be cheaper than mifepristone 
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